The Superman Family was prolific in having their tales chronicled, and not only alongside their most famous member. At least on Earth-One, as its members operated just as well individually as collectively like the Marvel Family.
On Earth-Two, there wasn't a "Superman's Pal...Jimmy Olsen" or the "Daring New Adventures of Supergirl" and the like. Sure, they had their own red-haired cub reporter, Girl of Steel (Power Girl, whose only solo tales were in "Showcase" #97-99), and our the Metropolis Marvel's one true love. Nevertheless, there were adventures on Kal-L's world that offset those near-and-dear on Kal-El's world, even if their participants weren't Halk Kar of Thoron, James Olsen of Metropolis, the Masked Wonder of Smallville or Kara Zor-L of Kandor.
The Adventures of Superboy were balanced out by those of Federal Man, aka Steve Carson. Steve was like his counterpart Cory Renwald a government agent and both had common parents with the Supermen Jonathan and Martha Kent, and Jerry Siegel and Joe Schuster. Carsten even on occasion wore a spandex costume as had Superboy, and filled in on Earth-Two for the correlating tales of the Boy of Steel on Earth-One..
And rather than the bizarre mis-adventures of "Superman's Pal", wherein Jimmy Olsen was transformed by all manner of strange occurrences including a female 5th dimensional imp while wearing his trademark green suits... there was the wacky tales of the Justice Society's mascot Johnny Thunder, who's every wish and whim was turned on its head by an imp from the Thunderbolt Dimension. And Jimmy's latter day tales, when he teamed up with the Golden Guardian and the Newsboy Legion on Earth-One would be mirrored by the original Earth-Two adventures of the first Guardian and the Legion's parents, themselves children at the time.
Instead of the adventures of the younger adolescent Superboy in the 30th century, there were the tales Earth-Two's Wonder Woman who also traveled into the 30th century of her world.
And the various series headlined by the blonde bombshell known as Supergirl aka Linda Danvers were mirrored by those of her Earth-Two counterpart Power Girl. aka Karen Starr. However, while Linda had mostly solo series in Action Comics, then Adventure Comics, then her first series followed by Superman Family and her concluded self-titled series... Karen was featured alongside the Justice Society of America in stories chronicled in All-Star Comics followed by World's Finest Comics and later Infinity Inc. It was with Karen's Infinity allies that her career path mirrored Linda's with the Legion of Super-Heroes, as both were honorary members appearing only on occasion with these lads and lasses. While Linda perished during the Crisis on Infinite Earths, although she had a composite clone who still existed, Karen's existence was transferred in a new post-Crisis Earth where Linda ceased to exist. Simultaneously, in the original concurrent Earth-Two reality, a Power Girl continued to exist there as well. Hence she split in two as had Linda with her clone, and Karen's hundreds of adventures after the Crisis until she returned to her home universe let her life Linda's life and hence have all of Supergirl's adventures in place of her.
Then there was that one true love, Lois Lane, who had golden age adventures in the backpages of Superman starting in issue #29 through #42, before graduating into a co-star in the Mr. and Mrs. Superman tales in a few issues of "Action Comics" and "Superman" before their continuing series featured in Superman Family #195-222. Although not nearly the volume of cases that her Earth-One counterpart had in "Superman's Girl Friend Lois Lane" #1-137, this would be compensated by the adventures of a contemporary of Earth-Two's Lois in Jane Arden, also a news reporter. She had scores of tales in Quality Comics. Jane Arden's Earth-One counterpart Meg Tempest was always a background character in Lois and her friends adventures.